ANGLE-RESOLVED ENERGY-DEPENDENCE OF THE 4P(4)ND(S-2(1 2)) (N=4-7) CORRELATION SATELLITES IN KR FROM 38.5 TO 250 EV - EXPERIMENT AND THEORY/

We measured and calculated the energy dependence of the 4p(4)nd(S-2(1/ 2)) (n = 4-7) correlation satellites in Kr from 38.5 to 250 eV. Our hi gh-resolution measurements used a photoelectron spectroscopy technique to determine the relative cross sections and angular distribution par ameters beta. We find that, as in the case of Xe, the absolute cross s ections of these satellites lines follow very closely the shifted and scaled cross section of the 4s main line. However, in the case of beta , we find that the nd(S-2(1/2)) (n = 4,5,6) follow the beta value of t he 4s main line below 150 eV only, and that beta of the 7d(S-2(1/2)) s atellite does not. We find that the beta of the nd(S-2(1/2)) (n = 4,5, and 6) satellites reach beta = 2 below 150 eV, but this value drops s ignificantly between photon energies of 200 and 250 eV. While the comp arison of our measurements with our calculation is good overall, some effects are not reproduced by the calculation. Our results are compare d with a previous measurement at 68.5 eV, and the agreement is fair. W e also measured the 4s and 4p main line cross sections and angular dis tributions and these results are compared to previous measurements and calculations. [S1050-2947(97)02512-2].